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Segment information - Additional Information (Details)
$ in Thousands
 12 Months Ended
Jan. 01, 2019
USD ($)
Dec. 31, 2020
USD ($)
segment
Dec. 31, 2019
USD ($)
Disclosure of operating segments [line items]      
Number of reportable segments | segment   6  
Revenue   $ 1,026,685 $ 617,823
Initial adoption of IFRS 16 $ 9,379   9,379
Turkey      
Disclosure of operating segments [line items]      
Revenue   588,188 352,385
CANADA      
Disclosure of operating segments [line items]      
Revenue   257,267 125,282
Two customers | Turkey      
Disclosure of operating segments [line items]      
Revenue   368,459 280,092
One customer | CANADA      
Disclosure of operating segments [line items]      
Revenue   $ 255,558 $ 122,160